3728988 has 18 divisors (see below), whose sum is σ = 9426144. Its totient is φ = 1242984.

The previous prime is 3728987. The next prime is 3729007. The reversal of 3728988 is 8898273.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3728983) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51756 + ... + 51827.

Almost surely, 2^3728988 is an apocalyptic number.

It is an amenable number.

3728988 is an abundant number, since it is smaller than the sum of its proper divisors (5697156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3728988 is a wasteful number, since it uses less digits than its factorization.

3728988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103593 (or 103588 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 3728988 is about 1931.0587769408. The cubic root of 3728988 is about 155.0709075502.

The spelling of 3728988 in words is "three million, seven hundred twenty-eight thousand, nine hundred eighty-eight".